Spring structure



June 1943- A. YOUNG 2,321,268

, SPRING STRUCTURE Filed March '14, 1941 Patented June 8, 1943 SPRING STRUCTURE Leonard A; Young, Detroit, Mich. Application March 14, 1941, Serial N0. 383,316

4 Claims.

This invention relates spring structure.

The main objects of my invention are:

First, to provide a spring structure or assembly including pocketed springs and border frame members associated therewith in supporting and securing relation thereto whereby to constitute a stable and non-rattling structure.

Second, to provide a spring assembly including coil springs and border frames, the latter having special, offset spring receiving, locating and clamping provisions whereby to contribute materially to the stability and resistance to displacement of the assembly as a whole.

Third, to provide a pocketed spring assembly, parts of which are effectively secured in assembled relation and wherein the possibility of noise due to clashing, rubbing or scraping of the parts is eliminated.

Further objects relating to details and economies of my invention will appear from the description to follow. The invention is defined in the claims.

A structure embodying the features of my invention is illustrated in the accompanying drawing, wherein:

Fig. 1 is a fragmentary top plan view illustrating an upholstered cushion or mattress structure incorporating the spring assembly of my invention, the upholstery or covering of said structure being removed in part to show the relation of the parts of the spring assembly.

Fig. 2 is a somewhat enlarged fragmentary view of the spring assembly with certain parts to improvements in thereof removed and broken away to more clearly indicate the operative relation.

Fig. 3 is a fragmentary view in top plan illustrating a modified embodiment of the invention, a frame and spring securing clip or hog ring being omitted.

Fig. 4 is a fragmentary plan view illustrating a portion of the bottom frame of the assembly of Fig. 3, and, in dotted lines, showing the co-action thereof with the bottom coil of the spring.

Fig. 5 is an enlarged fragmentary view in section on a line corresponding to line 5-5 of Fig. 3.

Referring to the drawing, the reference numeral I in Fig. 1, generally illustrates a mattress, upholstered cushion, spring pad or other structure incorporating the spring assembly 2 of my invention.

This assembly includes a plurality of coil springs 3, preferably of the pocketed type encased by a burlap or other suitable fabric casing 4, known to the art, hence not described in greater detail at this point. The individual pocketed springs may be clipped to one another at the extreme or end coils thereof by the clips or hog rings 5.

The border springs of the assembly are secured on and separated by top and bottom frames 6, I, respectively, and in order to readily position and effectively secure the respective top and bottom coils of the said border springs, frames 6 and i are provided with pairs of vertical offsets along the length thereof defining oppositely directed offsets or seats 8, these being of a depth approximately equal to the gauge of the wire-of the spring and being provided with the inwardly flaring or divergent ends 9 in general conformity with the curvature of the end spring coils, so as to snugly receive and engage the same in the manner clearly illustrated in Fig. 2, the material of the casing silencing and preventing scraping or clashing between the spring and frame members.

The parts are secured in the foregoing relation by means of sheet metal clips l0 encircling the outermost portion of the respective end coils of the springs and clamped around the flat border frames, these rings or clips being of a known type having dovetailed meeting edges H as illustrated. The fabric is pierced by the ring, which latter is flattened somewhat in general parallelism with the plane of the respective frames and wedgingly engages the adjacent end coil so as to prevent movement thereof out of its associated recess or seat 8 in the frame.

In Fig. 2 I have omitted the top clip In and broken away the casing for the purpose of clarity of illustration.

The foregoing assembly is exceedingly simple and the parts thereof are readily assembled and secured together in a permanent, silent, displacement-resisting construction.

In Figs. 3, 4 and 5 I illustrate a generally similar construction wherein, in addition to the above features, the innermost side or edge seats 8 of the two frame members 6, 1 are offset or deflected mutually inwardly toward one another at l 2, following association of the spring coil therewith, to provide inner retaining flanges or lips l3 having anchoring and displacement resisting engagement with the inner periphery of the spring coil. It will be understood that the clips or hog rings are applied when the frame and coil are in lateral bracing engagement to locate the coil and prevent movement endwise of the frame, in the manner of Figs. 1 and 2. Lips l3 contribute a further factor of resistance to accidental displacement normally of the frame.

An embodiment of the invention which incorporates the principles of the invention in a highly desirable manner have been illustrated and described. It should be understood that the foregoing terminology is used only descriptively rather than in a limiting sense, and with full intention to include equivalents of the features shown and described, within the scope of the following claims.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent is:

1. In a spring assembly of the type described, an annular border frame and plurality of coil springs associated therewith and supported thereby, said border frame being of generally flat section disposed with the wider surfaces thereof in the plane of the frame and being offset vertically outwardly of the assembly at spaced areas to provide elongated seats of substantial depth the ends of which flare or diverge inwardly of the frame periphery for lateral sustaining engagement with the exterior side of the end coil of a border spring, the material of said frame having a substantial area of overlap relative to said coil at said seat, and a clip secured around said frame offset and coil to lockingly secure the parts in displacement resistant relation.

2. In a spring assembly of the type described, an annular border frame and plurality of coil springs associated therewith and supported thereby, said border frame being of generally flat section disposed with the wider surfaces thereof in the plane of the frame and being offset vertically outwardly of the assembly at spaced areas to provide elongated seats of substantial depth the ends of which flare or diverge inwardly of the frame periphery for lateral sustaining engagement with the exterior side of the end coil of a border spring, the material of said frame having a substantial area of overlap relative to said coil at said seat, said seat at its inner side being deformed downwardly for sustaining engagement with the inner side of the coil, and a clip secured around said frame offset and coil adjacent said downturned lip to lockingly secure the parts in displacement resistant relation.

3. In a spring assembly of the type described, an annular border frame and plurality of coil springs associated therewith and supported thereby, said border frame being of generally flat section disposed with the wider surfaces thereof in the plane of the frame and being offset vertically outwardly of the assembly at spaced areas to provide elongated seats of substantial depth receiving the exterior side of the end coil of a border spring, the material of said frame having a substantial area of overlap relative to said coil at said seat, and a clip secured around said frame offset and coil to lockingly secure the parts in displacement resistant relation.

4. In a spring assembly of the type described, an annular border frame and plurality of coil springs associated therewith and supported thereby, said border frame being of generally fiat section disposed with the wider surfaces thereof in the plane of the frame and being offset vertically outwardly of the assembly at spaced areas to provide elongated seats of substantial depth receiving the exterior side of the end coil of a border spring, the material of said frame having a substantial area of overlap relative to said coil at said seat, said seat at its inner side being deformed downwardly for sustaining engagement with the inner side of the coil, and a clip secured around said frame offset and coil adjacent said downturned lip to lockingly secure the parts in displacement resistant relation.

LEONARD A. YOUNG. 

